So Ody Could Have Made The Canals And Rivers For His Water Wife - Tumblr Posts

Don´t worry it would have been worse if you went the Odysseus the bioenginner route™, that would have been craizier, also I don´t think there´s a geological map of Ithaca, (we don´t have a clue where it is)

btw it's fantasy, you really don't need to worry about your world map making "sense" geologically or whatever. make that river flow backwards from the sea into the mountain.